. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. -M Fig. 242.—Asolla Uliculoides. A, Mature sporophyte, X2; B, lower surface of a branch with two microsporangial son {sp), X6; C, macrosporangial (mo) and microspo- rangial (mi) sori, Xio,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Campbell, Douglas Houghton, 1859-1953. New York, The Macmillan Company;

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